<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>0503 - Disclosure - Lines of Credit (Tables)</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><CurrencyCode /><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName /><CurrencySymbol /><contextRef><ContextID>Jan_01_2013_Jun_28_2013</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0000815917</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2013-01-01T00:00:00</PeriodStartDate><PeriodEndDate>2013-06-28T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS /><CurrencyCode /><OriginalCurrencyCode /></MCU><CurrencySymbol /><Labels><Label Key="CalendarSupplement" Id="0" Label="6 Months Ended" /><Label Key="Calendar" Id="1" Label="Jun. 28, 2013" /></Labels></Column></Columns><Rows><Row FlagID="0"><Id>1</Id><IsAbstractGroupTitle>true</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>1</Level><ElementName>us-gaap_DebtDisclosureAbstract</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Lines of Credit/Long-Term Debt [Abstract]</Label></Row><Row FlagID="0"><Id>2</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>2</Level><ElementName>us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboseLabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="Jan_01_2013_Jun_28_2013" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Note Table: note3_table1 - us-gaap:ScheduleOfLineOfCreditFacilitiesTextBlock--&gt;
   &lt;p style="margin-top:6px;margin-bottom:0px"&gt;&lt;font style="font-family:times new roman" size="2"&gt;The following table shows the composition of the Partnership&amp;#8217;s aggregate bank lines of
   credit in place as of: &lt;/font&gt;&lt;/p&gt;
   &lt;p style="font-size:12px;margin-top:0px;margin-bottom:0px"&gt;&amp;#160;&lt;/p&gt;
   &lt;table cellspacing="0" cellpadding="0" width="76%" border="0" style="border-collapse:collapse; text-align: left" align="center"&gt;
   &lt;!-- Begin Table Head --&gt;
   &lt;tr&gt;
   &lt;td width="74%"&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom" width="6%"&gt;&amp;#160;&lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom" width="6%"&gt;&amp;#160;&lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" colspan="2" align="center"&gt;&lt;font style="font-family:times new roman" size="1"&gt;&lt;b&gt;June&amp;#160;28,&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" colspan="2" align="center"&gt;&lt;font style="font-family:times new roman" size="1"&gt;&lt;b&gt;December&amp;#160;31,&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"&gt;&lt;font style="font-family:times new roman" size="1"&gt;&lt;b&gt;2013&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" colspan="2" align="center" style="border-bottom:1px solid #000000"&gt;&lt;font style="font-family:times new roman" size="1"&gt;&lt;b&gt;2012&lt;/b&gt;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;!-- End Table Head --&gt;
   &lt;!-- Begin Table Body --&gt;
   &lt;tr&gt;
   &lt;td height="8"&gt;&amp;#160;&lt;/td&gt;
   &lt;td height="8" colspan="4"&gt;&amp;#160;&lt;/td&gt;
   &lt;td height="8" colspan="4"&gt;&amp;#160;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr bgcolor="#cceeff"&gt;
   &lt;td valign="top"&gt;
   &lt;p style="margin-left:1.00em; text-indent:-1.00em"&gt;&lt;font style="font-family:times new roman" size="2"&gt;2011 Credit Facility&lt;/font&gt;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" align="right"&gt;&lt;font style="font-family:times new roman" size="2"&gt;395,000&lt;/font&gt;&lt;/td&gt;
   &lt;td nowrap="nowrap" valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" align="right"&gt;&lt;font style="font-family:times new roman" size="2"&gt;395,000&lt;/font&gt;&lt;/td&gt;
   &lt;td nowrap="nowrap" valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr&gt;
   &lt;td valign="top"&gt;
   &lt;p style="margin-left:1.00em; text-indent:-1.00em"&gt;&lt;font style="font-family:times new roman" size="2"&gt;Uncommitted secured credit facilities&lt;/font&gt;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" align="right"&gt;&lt;font style="font-family:times new roman" size="2"&gt;415,000&lt;/font&gt;&lt;/td&gt;
   &lt;td nowrap="nowrap" valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" align="right"&gt;&lt;font style="font-family:times new roman" size="2"&gt;415,000&lt;/font&gt;&lt;/td&gt;
   &lt;td nowrap="nowrap" valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr style="font-size:1px"&gt;
   &lt;td valign="bottom"&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:1px solid #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:1px solid #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:1px solid #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:1px solid #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr bgcolor="#cceeff"&gt;
   &lt;td valign="top"&gt;
   &lt;p style="margin-left:3.00em; text-indent:-1.00em"&gt;&lt;font style="font-family:times new roman" size="2"&gt;Total lines of credit&lt;/font&gt;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" align="right"&gt;&lt;font style="font-family:times new roman" size="2"&gt;810,000&lt;/font&gt;&lt;/td&gt;
   &lt;td nowrap="nowrap" valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font size="1"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;$&lt;/font&gt;&lt;/td&gt;
   &lt;td valign="bottom" align="right"&gt;&lt;font style="font-family:times new roman" size="2"&gt;810,000&lt;/font&gt;&lt;/td&gt;
   &lt;td nowrap="nowrap" valign="bottom"&gt;&lt;font style="font-family:times new roman" size="2"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr style="font-size:1px"&gt;
   &lt;td valign="bottom"&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:3px double #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:3px double #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;&amp;#160;&lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:3px double #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td valign="bottom"&gt;
   &lt;p style="border-top:3px double #000000"&gt;&amp;#160;&lt;/p&gt;
   &lt;/td&gt;
   &lt;td&gt;&amp;#160;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;!-- End Table Body --&gt;
   &lt;/table&gt;
</NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 235

 -SubTopic 10

 -Section S99

 -Paragraph 1

 -Subparagraph (SX 210.4-08.(e),(f))

 -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690



Reference 2: http://www.xbrl.org/2003/role/presentationRef

 -Publisher SEC

 -Name Regulation S-X (SX)

 -Number 210

 -Section 08

 -Paragraph f

 -Article 4



Reference 3: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 210

 -SubTopic 10

 -Section S99

 -Paragraph 1

 -Subparagraph (SX 210.5-02.19(b),22(b))

 -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682



Reference 4: http://www.xbrl.org/2003/role/presentationRef

 -Publisher SEC

 -Name Regulation S-X (SX)

 -Number 210

 -Section 02

 -Paragraph 19, 22

 -Article 5



</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Composition of the Partnership's aggregate bank lines of credit</Label></Row></Rows><Footnotes /><IsEquityReport>false</IsEquityReport><ReportName>Lines of Credit (Tables)</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>true</HasCustomUnits><IsEmbedReport>false</IsEmbedReport><IsMultiCurrency>false</IsMultiCurrency><ReportType>Sheet</ReportType><RoleURI>http://edwardjones.com/role/LinesOfCreditTables</RoleURI><NumberOfCols>1</NumberOfCols><NumberOfRows>2</NumberOfRows></InstanceReport>
