Added auctex and yasnippets

.emacs.d/snippets/sql-mode/column

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+#contributor : Alejandro Espinoza Esparza <aespinoza@structum.com.mx>
+#name : , ColumnName ColumnType NOT NULL...
+# --
+	,	${1:Name}		${2:Type}			${3:NOT NULL}

.emacs.d/snippets/sql-mode/constraint

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+#contributor : Alejandro Espinoza Esparza <aespinoza@structum.com.mx>
+#name : CONSTRAINT [..] PRIMARY KEY ...
+# --
+CONSTRAINT [${1:PK_Name}] PRIMARY KEY ${2:CLUSTERED} ([${3:ColumnName}]) 

.emacs.d/snippets/sql-mode/constraint.1

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+#contributor : Alejandro Espinoza Esparza <aespinoza@structum.com.mx>
+#name : CONSTRAINT [..] FOREIGN KEY ...
+# --
+CONSTRAINT [${1:FK_Name}] FOREIGN KEY ${2:CLUSTERED} ([${3:ColumnName}]) 

.emacs.d/snippets/sql-mode/create

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+#contributor : Alejandro Espinoza Esparza <aespinoza@structum.com.mx>
+#name : create table ...
+# --
+CREATE TABLE [${1:dbo}].[${2:TableName}] 
+(
+		${3:Id}		${4:INT IDENTITY(1,1)}		${5:NOT NULL}
+$0
+	CONSTRAINT [${6:PK_}] PRIMARY KEY ${7:CLUSTERED} ([$3]) 
+)
+GO

.emacs.d/snippets/sql-mode/create.1

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+#contributor : Alejandro Espinoza Esparza <aespinoza@structum.com.mx>
+#name : create procedure ...
+# --
+CREATE PROCEDURE [${1:dbo}].[${2:Name}] 
+(
+		$3		$4		= ${5:NULL}		${6:OUTPUT}
+)
+AS
+BEGIN
+$0
+END
+GO

.emacs.d/snippets/sql-mode/insert

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+# -*- mode: snippet; -*-
+# name: insert
+# key: ins
+# --
+INSERT INTO ${table-name} (${col1, col2}) VALUES (${'val1', 'val2'});$0

.emacs.d/snippets/sql-mode/references

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+#contributor : Alejandro Espinoza Esparza <aespinoza@structum.com.mx>
+#name : REFERENCES ...
+# --
+REFERENCES ${1:TableName}([${2:ColumnName}])